mfg. of ice cream and frozen ices in various forms such as bulk, brick, cups, rolls, on sticks, decorated ice cream cakes and other fancy shapes. Ice cream is made into various forms or filled into different size containers and sent to hardening rooms. Ice cream manufactures. drivers operating within the state where the ice cream is mfg. is included within this code. Employees of the ice cream mfg. who install and service ice cream cabinets or mechanical refrigeration on customers premises is also contemplated within this class code.